| <html> |
| <script> |
| function tabsocketTest() { |
| // Unfortunately, the order in which |
| // HeadlessRenderFrameControllerImpl::DidCreateScriptContext and |
| // HeadlessRenderFrameControllerImpl::InstallMainWorldTabSocket are called |
| // is non-deterministic. This means the TabSocket might not have been |
| // installed yet. If that happens just try again a bit later. |
| if (window.hasOwnProperty('TabSocket')) { |
| window.TabSocket.send('Hello world!'); |
| |
| window.TabSocket.onmessage = function(message) { |
| window.TabSocket.send('Embedder sent us: ' + message); |
| }; |
| } else { |
| setTimeout(tabsocketTest, 1); |
| } |
| } |
| tabsocketTest(); |
| </script> |
| </html> |
